28815325330112 has 168 divisors, whose sum is σ = 61713146267136. Its totient is φ = 13323748416000.

The previous prime is 28815325330097. The next prime is 28815325330117. The reversal of 28815325330112 is 21103352351882.

It is not an unprimeable number, because it can be changed into a prime (28815325330117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1543310537 + ... + 1543329207.

It is an arithmetic number, because the mean of its divisors is an integer number (367340156352).

Almost surely, 2^{28815325330112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28815325330112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30856573133568).

28815325330112 is an abundant number, since it is smaller than the sum of its proper divisors (32897820937024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28815325330112 is a wasteful number, since it uses less digits than its factorization.

28815325330112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19859 (or 19818 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

Adding to 28815325330112 its reverse (21103352351882), we get a palindrome (49918677681994).

The spelling of 28815325330112 in words is "twenty-eight trillion, eight hundred fifteen billion, three hundred twenty-five million, three hundred thirty thousand, one hundred twelve".